This article describes the steps required to give a user account full access permissions over a mailbox, so that user can restore to that mailbox using Mailbox Restore.

Exchange 2007 or greater

1. Open the Exchange Management Shell as an administrator.

2. Run the following commands:

   Add-MailboxPermission -user USERNAME -AccessRights FullAccess -InheritanceType All MAILBOX
   Add-ADPermission -user USERNAME -ExtendedRights Send-As MAILBOX
   Add-ADPermission -user USERNAME -ExtendedRights Receive-As MAILBOX
   

   substituting USERNAME and MAILBOX with your own username and the name of the user of the target mailbox.

Exchange 2003

1. Click on Start > Administrative Tools > Active Directory Users and Computers.

2. Under "Users", right click on the user whose mailbox you wish to restore to, and click "Properties".

   

3. On the "Exchange Advanced" tab, click "Mailbox Rights".

   

4. In the Permissions dialog, click "Advanced". Then select your username in the list, and click "Edit".

   If your username does not appear on the list, then click "Add", use the dialog to select your username, then click "OK".

   

5. Check the "Full mailbox access - Allow" checkbox, and click "OK".